Truck and camper choice depends on your values, purpose, risk tolerance, and mechanical aptitude/bank balance (you can always purchase mechanical talent). The lightest trucks rated by the manufacturers to carry a camper are 1/2 ton regular cab long bed and 1/2 ton extended cab long beds so long as you stay below Gross Vehicle Weight Rating (GVWR) which is on the door sticker. Many truck owners have values... compatible with putting campers on trucks not rated to carry a camper (Tacoma, Colorado, 1/2 ton extended cab, 1/2 ton crew cab...) and/or exceed GVWR. Almost all 3/4 ton and 1 ton trucks are rated to carry a camper unless they have the snow plow package (someone plowed with a camper on and damaged the truck under warranty, so one or the other, camper or plow, but not both) as long as you stay below GVWR. Mechanical aptitude/bank balance is required to modify an unrated or overloaded truck to better handle the camper but you are out of warranty coverage. Long bed 1/2 ton trucks handle campers better because more weight is carried on the front axle since the camper has a more forward stance relative to the rear axle. Overloading and/or excessive rear axle loading can cause bearing failures, spring damage, poor braking, and/or poor handling especially in emergency maneuvering and even frame damage if the used vehicle is especially old/poorly designed. Vehicle repairs and modifications can mitigate these issues if they occur (i.e. mechanical aptitude/bank balance). My truck is totally stock and requires no modifications, repairs, or warranty conflicts and that fits my values...